This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 35 |
| 3 | 37 |
| 4 | 1015 |
| 5 | 27417 |
| 6 | 27421 |
| 7 | 27449 |
| 8 | 27453 |
| 9 | 19774739 |
| 10 | 530743781 |
| 11 | 530743799 |
| 12 | 530743807 |
| 13 | 530743813 |